原标题：Holtek HT83F02 8位微控制器语音解决方案

　　Holtek公司的HT83F02是8位微控制器(MCU), 内建闪存程序ROM，高速SPI与I²C接口，单音12位电压型DAC，PWM直接推动8/16欧姆喇叭，以极少的外部零件，极佳的抗噪声能力与工业规格温度范围 (-40℃～+85℃)，让产品导入语音功能变得更可靠，更简单。主要应用在家庭防护、防盗器材、健康医疗、语音家电等.本文介绍了HT83F02主要特性,方框图以及典型应用电路.

　　The Flash type voice of MCU has Flash type Program Memory and Connect External flash through SPI Serial Interface. Offering users the convenience of Flash Memory multi-programming features, this device also includes a wide range of functions and features which include a voice synthesizer and tone generator. This device is designed for applications which require multiple I/Os and sound effects, such as voice and melody. It can provide various sampling rates and beats, tone levels, tempos for speech synthesizer and melody generator. It also includes two integrated high quality, voltage type DAC outputs and voltage type PWM outputs.

　　This device is excellent solutions for versatile voice and sound effect product applications with their efficient MCU instructions providing the user with programming capability for powerful custom applications. The system frequency can be up to 12MHz at an operating voltage of 5V and include a power-down function to reduce power consumption. A full choice of HXT, ERC and HIRC oscillator functions are provided including a fully integrated system oscillator which requires no external components for its implementation.

　　The MCU flash voice memory capacity determine by user, into which the user can download their voice data.

　　HT83F02主要特性:

　　_ Operating voltage: 2.4V~5.5V

　　_ System clock: 4MHz~12MHz

　　_ Three oscillators:

　　External Crystal - HXT

　　External RC - ERC

　　Internal RC - HIRC

　　_ Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components

　　_ Up to 19 I/O pins

　　_ Two sets of Serial Interfaces Module - SIM for SPI or I2C, shared with PB

　　_ 2K_16 Flash Program Memory

　　_ 208_8 Data Memory

　　_ Two 8-bit programmable timer counter with 8-stage prescaler and one time base counter

　　_ 12-bit high quality voltage type D/A output

　　_ PWM circuit direct drive speaker

　　_ Watchdog Timer function

　　_ 8-level subroutine nesting

　　_ 2.7V Low voltage detection, tolerance 5%

　　_ 2.4V Low voltage reset, tolerance 5%

　　_ Power-down function and wake-up feature reduce power consumption

　　_ 63 powerful instructions

　　_ 28-pin SSOP package

　　图1.HT83F02方框图

　　图2.HT83F02 PA输入/输出端口框图

　　图3.HT83F02 PB输入/输出端口框图

　　图4.HT83F02 SPI接口框图

　　图5.HT83F02 应用电路图